I also assume that it would use a G21 frame. It's the design experience for the slide that is lacking for a .45 ACP competition length slide...experience that is much stronger for a .45 GAP model.

The .45 GAP G37 slide is 30mm wide. There is already good experience at Glock for "Competition" ("Tactical/Practical") slides that are 30mm wide, which is also the width of G34 and G35 slides. Glock needs only to develop their third 30mm wide competition-length slide, for the .45 GAP, based on extending the G37 slide in light of established G34/G35 slide design experience.

The .45 ACP G21 uses a slide that is 32.5mm wide. Glock has no experience with any other model that uses a competition-length 32.5mm wide slide. There's bound to be a few things that come up due to the novel experience, not the least being design of the slots in the slide top that are required in order to reduce slide mass to achieve adequate slide velocity (as is required on all other Glock competition-length barrels).
I'm not arguing for a competition length .45 GAP. I think the same thing in .45 ACP would have much greater appeal (and utility). I'm only saying that a pistol for .45 GAP would be easier for Glock to develop properly and quickly.

Glock already has a 6 inch barrel for that frame, all they need to do is extend it with a cut out, just like a 17L or a 24.

__________________
Try to look unimportant; the enemy may be low on ammo and not want to waste a bullet on you.
Murph's Laws of Combat

Perhaps better would be to produce a 9x22 Glock round and the pistol to go with it. Performance up to slightly higher than 357SIG with more rounds per magazine and the option to load longer and heavier bullets. I certainly see a good rational behind 9mm caliber with more power.

English

If you're designing a new round, make it a straight wall case too. Maybe a .38 SS (super short)

We don't need another boutique round we need a firearm that is capable of the current popular rounds in the size everyone wants. I don't want another GAP or 5.7 handgun I want a single-stack, sub-compact 9mm in as small of a package as Glock can make to compete with the Shield, XDs and similar firearms because if Glock enters that segment it wouldn't even be a competition.

Yes. I should have said straight wall and rimless, but I was thinking more a slightly shorter 9x23mm Winchester than a .38 Super.

English

As cool as it would be, I have to agree with Jer. Stick with the current calibers. Let's hope for more powder improvements that will continue to increase 9x19 velocity without crossing the +p pressure threshold.

I think the biggest market right now is the XDs and M&P Shield market. Pretty much no one has released a problem free gun in that size, with a track record similar to say the introduction of the G26. And I'm talking overall track records, which doesn't mean a lot of people haven't had good luck with them. They both have recall warnings listed in the latest American Rifleman. It seems the jump from the sub compact to slim subcompact has many challenges.

As cool as it would be, I have to agree with Jer. Stick with the current calibers. Let's hope for more powder improvements that will continue to increase 9x19 velocity without crossing the +p pressure threshold.

.....

I think the 9x19 has reached its limit and for me that limit is too low. To get more performance you just have to have more case capacity and a higher pressure limit would be good too. The .38 Super has the same pressure limit as the 9x19 and it is its extra case capacity that reduces the initial pressure spike and lets it maintain a higher average pressure. A 9x22mm would provide enough headroom for a fairly wide range of loadings. The 9x23mm Winchester does that as well but Winchester have a hold on it and they have done a very poor marketing and development job with it.

Can't mention any names (Guy in Red Suit with White Beard), but the word is the Glock 40 designation is assigned to a new .44 Automag pistol which will be a single stack with 7 round mags.
It will be released at 4:41 am on Black Friday (This year kids!) in Smyrna. First 2000 people in the door get one for free with a canned food donation valued at $800.

Yes. I should have said straight wall and rimless, but I was thinking more a slightly shorter 9x23mm Winchester than a .38 Super.

English

Ohh maybe sort of like a .356 TSW?

__________________Bruce I never talked to anyone who had to fire their gun who said "I wished I had the smaller gun and fewer rounds with me"Just because you find a hundred people who agree with you on the internet does not mean you're right.